Comtrol AT Commands for SmartACFL User Manual
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Command Reference Manual
100722A
Conexant
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3.3.3.36 S86 - Call Failure Reason Code
When the modem issues a NO CARRIER result code, a value is written to S86 Register to help determine the reason for the
failed connection. S86 records the first event that contributes to a NO CARRIER message. The code definitions are:
Range:
0-26
Default: 21
S86=0
Normal hangup, no error occurred.
S86=1
Reserved.
S86=2
Reserved.
S86=3
Call Waiting caused disconnect.
S86=4
Physical carrier loss.
S86=5
No error correction at the other end.
S86=6
No response to feature negotiation.
S86=7
This modem is async only; the other modem is sync only.
S86=8
No framing technique in common.
S86=9
No protocol in common.
S86=10
Bad response to feature negotiation.
S86=11
No sync information from the remote modem.
S86=12
Normal hangup initiated by the remote modem.
S86=13
Retransmission limit reached.
S86=14
Protocol violation occurred.
S86=15
Lost DTR.
S86=16
Received GSTN cleardown.
S86=17
Inactivity timeout.
S86=18
Speed not supported.
S86=19
Long space disconnect.
S86=20
Key abort disconnect.
S86=21
Clears previous disconnect reason.
S86=22
No connection established.
S86=23
Disconnect after three retrains.
S86=24
Call Waiting tone detected.
S86=25
Extension pickup detected.
S86=26
Remote hangup detected.